Browsing by Author "MUHAMMAD AZAM QAMAR"

Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Synthesis, characterization and biological activities of co-doped SNO2 nanoparticles
    (UMT, Lhr, 2015) MUHAMMAD AZAM QAMAR
    Synthesis and applications of nanoparticles have got great importance in different fields. Cobalt-doped SnO2 nanoparticles were prepared by using a simple synthesis method, and their characterization, optical properties and antimicrobial activities were investigated. The co-precipitation technique was applied to synthesize doped, highly pure nanoparticles. The formation of the prepared nanoparticles was confirmed by applying the important characterization techniques. The used techniques were Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) analysis, and UV-Vis. spectroscopy. The average size of the nanoparticles was found to be 24.86 nm. The SEM/EDX analysis data confirmed the elemental composition of Co-doped SnO2 nanoparticles. The optical properties were studied by measuring the energy band gap. The Energy band gap was found 1.477 eV for un-doped SnO2 which decreases to 1.450 eV for doped SnO2 nanoparticles. The antimicrobial activities of the synthesized nanoparticles were carried against both Gram-negative than Gram-positive bacteria. The antimicrobial activity of doped SnO2 nanoparticles was good against Gram-negative as well as against Gram-positive bacteria